York 031-02479-001 Relay Board 321894-706 Precise Metering: The

Precise Metering: The

the Carrier HN67KZ012 is the industry standard for restoring original equipment performance in high-demand environments

provided the brazing or soldering is performed according to industry standard practices for high-pressure mechanical systems

Smith 100111286 and specific Lochinvar water heater configurations

If your current part number is B1340003 or B1340021

York 031-02479-001 Relay Board 321894-706 Precise Metering: TheThe York 031 02479 001 Relay Board is a critical OEM replacement component designed for Mustang heating and cooling systems. As a veteran grade HVAC control board, it functions as the central logic unit, managing and directing high voltage electrical signals to ensure precise sequencing and timing of furnace and air conditioning operations. This Mustang control relay board is engineered with integrated circuitry that switches circuits in response to